I agree with the other posters and add the caveat that since exercise increases our serotonin, lack of exercise results in a decrease which means no more natural happy drugs.

Although you can increase your walking and alternative exercises which will result in the same increases in serotonins, it could also mean an opportunity to get into some meditation that balances out our (cyclists) need for high energy movement. Studies have shown that the same exercise induced results can also occur from slower, meditative programs.

Or, you may get the same result from great weekly massages.

Just throwing out ideas to you. Get well soon.